[ 007/133] ARM: 7548/1: include linux/sched.h in syscall.h

[Greg Kroah-Hartman]

3.5-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Wade Farnsworth <wade_farnsworth@xxxxxxxxxx>

commit 8ef102c6b4bc996ff96ca52b34775fe931ec90c9 upstream.

The syscall tracing patch introduces a compile bug in lttng-modules
when the latter calls syscall_get_nr(), similar to the following:

<path-to-linux>/arch/arm/include/asm/syscall.h:21:2: error: implicit declaration of function 'task_thread_info' [-Werror=implicit-function-declaration]

The issue is that we are using task_thread_info() in the
syscall_get_nr() function in asm/syscall.h, but not explicitly
including sched.h from this file, so we can expect this bug might
surface any time that syscall_get_nr() is called.

Explicitly including sched.h solves the problem.

Signed-off-by: Wade Farnsworth <wade_farnsworth@xxxxxxxxxx>
Acked-by: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 arch/arm/include/asm/syscall.h |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/arm/include/asm/syscall.h
+++ b/arch/arm/include/asm/syscall.h
@@ -8,6 +8,7 @@
 #define _ASM_ARM_SYSCALL_H
 
 #include <linux/err.h>
+#include <linux/sched.h>
 
 extern const unsigned long sys_call_table[];
 


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